Welcome to Natural Bridge Caverns, Texas –a premier natural attraction – where you'll find adventure and fun around every bend. Like on the Discovery Tour, . Come on down (way down) at the largest underground attraction in Texas! Daily guided tours allow guests to explore large underground chambers and see . The Natural Bridge Caverns are the largest known commercial caverns in the U.S. state of Texas. The name is derived from the 60 ft natural limestone slab . Find hours and ticket prices for Natural Bridge Caverns, Texas' premier natural attraction that offers cavern tours, zip lining, gem mining, and more. Discover incredible underground chambers filled with spectacular formations on a family-friendly guided tour along paved, lighted walkways. Natural Bridge . 351 reviews of Natural Bridge Caverns 'I was very excited to see this! From where I'm from originally, we don't have caverns at all, so this was a bucket list for me . Natural Bridge Caverns, San Antonio, Texas. 57K likes. Whether you are a first timer, an avid caver or someone in between, Natural Bridge Caverns awaits.